Refrigerating apparatus



W. E. AND E. G. MILD.

REFRIGERATING APPARATUS.

APPLICATION FILED 05023, 1918.

1 524,610. Patented Dec. 9, 1919.

COOL/N6 CO/L INVENTORS- STEAM CO/L BY ATTORN Y To all whom it may concern:

- UNITED STATES PATENT OFFICE.

WILLIAM E. MILD AND EDWARD G. MILD, 0F DAYTON, OHIO.

REFRIGERATING APPARATUS.

Be it known that we, WILLIAM E. MILD and EDWARD G. MILD, citizens of the United States, residing at National Military. Home, Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Refrigerating which the following is a' Apparatus, of specification.

onthe pump is also an objection. With the arrangements of the absorber generator type, it has been found impossible to secure sufiicient rapid absorption of the medium It is therefore the principal object .of the present invention to overcome these difficulties and to thus considerably increase the eficiency of the apparatus. 1

To these ends the present improvements -Our invention relates to improvements in Specification of Letters Patent.

comprise a system including an absorber, a\

generator, and a return trap of the bucket type for conducting the ammonia liquor from the absorber to the generator, the absorber being placed ata higher level than the generator and trap, a pipe with a check valve forming a communication from the absorber to the trap, and a pipe with a check valve forming a communication from the trap to the generator. Our invention comprises further details and arrangements of parts to be hereinafter more particularly referred to in connection with the accompanying drawing which is diagrammatic. The trap as it there appears is enlarged out of proportion to the absorber and generator. Parts of the entire refrigerating system are omitted from the illustration because of the fact that a complete illustration of the system is not necessary to' an understanding of the present improvements.

In carrying our invention into eflect in a convenient manner, for example, when applying it to an ammonia absorption apparatus, the absorber A is placed on a duinp vessel D of theliigher level than the bucket trap B so that Patented Dec. 9, 1919. Application filed December 23, 1918. Serial No. 267,929. l I

the ammonia liquor flows by gravity into the trap through the, pipe a having a check valve 1). When the dump, Vessel D of the trap becomes full it drops upon its hinge r and mechanically opens an equalizingvalve a connected to valve rod (2 pivoted 'at e to the bottom of the said dump vessel D. The hinge or pivot, r afiords the least possible friction or resistance to the movement of the bucket so thatatno time is there danger of the bucket sticking or failing to act or move upon its pivot when required. The Valve 0 then opens the trap B' to the pipe f which communicates with the top of said trap from the generator C. This operation of the trap enables the pressure in .the generator and trap to equalize. erator being on a lower the ammonia liquor flows by gravity througbpipe 9 having a check valve it into the upper part of the generator. When the trap becomes empty, the counter-balance weight 2' which is con nected to the said dump vessel, elevates said vessel to its level position and closes the equalizing valve 0 to the said generator.

level than the trap,

At such time the valve 9 in the bottom of the dump vessel also closes. .At this time the equalizing valve 70 is openedand there is established a communication between the bucket trap B and the top of the absorber A through a pipe m which operation re-" lieves the gas pressure in the trap and said trap will refill again from the absorber A and discharge into the generator O. The

equalizing valve is has its rod it connected to the bottom of the dump vessel D similar to rod (1! of valvec. The ammonia liquor in absorber A flows into the trap B through the pipe a by gravity. When the weight of the ammonia liquor in vessel D becomes sufficient to dump said vessel the trap drain valve p in the bottom of the trap opens andg the ammonia liquor flows into the generator '0 through the pipe 9 and through check The said genparatus as there shown. Vhen the trap is again filled from the absorber A the cycle is repeated. Having c-laini: y

In a refrigerating apparatus of the type specified, an absorber, a generator. a trap consisting of a tight casing, a bucket hinged at one side and supported at the other by a described our invention we weight, equalizing valves in the top of said 10 In testimony whereof we affix our signa- 15 tures.

WILLIAM E. MILD. EDIVARD G. MILD. 

